lc = 0.1;
Point(1) = {-1, 0, 0, 0.1};
Point(2) = {1, 0, 0, 0.1};
Point(3) = {-0.9, 0, 0, 1};
Point(4) = {-0.8, 0, 0, 0.1};
Point(5) = {-0.6, 0, 0, 0.1};
Point(6) = {-0.4, 0, 0, 0.1};
Point(7) = {-0.3, 0, 0, 0.1};
Point(8) = {0.9, 0, 0, 0.1};
Point(9) = {0.7, 0, 0, 0.1};
Point(10) = {0.5, 0, 0, 0.1};
Point(11) = {0.7, 0.2, 0, 0.1};
Point(12) = {0.7, -0.2, 0, 0.1};
Point(13) = {0.7, 0.3, 0, 0.1};
Point(14) = {0.7, -0.3, 0, 0.1};
Point(15) = {-0.6, 0.2, 0, 0.1};
Point(16) = {-0.6, 0.3, 0, 0.1};
Point(17) = {-0.6, 0.4, 0, 0.1};
Point(18) = {-0.6, -0.2, 0, 0.1};
Point(19) = {-0.6, -0.3, 0, 0.1};
Point(20) = {-0.6, -0.4, 0, 0.1};
Line(1) = {13, 17};
Line(2) = {20, 14};
Circle(3) = {13, 9, 2};
Circle(4) = {2, 9, 14};
Circle(5) = {11, 9, 8};
Circle(6) = {8, 9, 12};
Circle(7) = {12, 9, 10};
Circle(8) = {10, 9, 11};
Circle(9) = {17, 5, 1};
Circle(10) = {1, 5, 20};
Circle(11) = {16, 5, 3};
Circle(12) = {3, 5, 19};
Circle(13) = {19, 5, 7};
Circle(14) = {7, 5, 16};
Circle(15) = {15, 5, 4};
Circle(16) = {4, 5, 18};
Circle(17) = {18, 5, 6};
Circle(18) = {6, 5, 15};

Line Loop(19) = {1, 9, 10, 2, -4, -3};
Line Loop(20) = {14, 11, 12, 13};
Line Loop(21) = {8, 5, 6, 7};
Plane Surface(22) = {19, 20, 21};
Line Loop(23) = {18, 15, 16, 17};
Plane Surface(24) = {20, 23};
Extrude {0, 0, 0.3} {
  Surface{22, 24};
}
Extrude {0, 0, .1} {
  Surface{138};
}
Extrude {0, 0, -.1} {
  Surface{24};
}

